Thread cassette for sewing machine



FIG. 1 is a perspective view of a thread cassette for sewing machine;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left-side view thereof; and,

FIG. 5 is a bottom view thereof.

The right side and rear views contain on ornamentality and are omitted.

The broken line showing defines the bounds of the claimed design but does not form part of the claimed design. 

The ornamental design for a thread cassette for sewing machine, as shown and described. 